提示：点击例句中的单词，就可以看到词义解释

He unbent his mind by reading detective stories .

他以读侦探小说来使他的心情松弛。

He can only be unbent in the family circle .

他只有在家庭圈子里才能轻松自如。

The judge unbent and behaved like a boy .

法官松弛了下来，举止像个小男孩。

She was very formal at first , but then she unbent a little and told a joke .

她起先显得很正经，但后来变得随和些，还讲了个笑话。

Taxi-drivers unbent so far as to take people part of the way home free .

出租车司机的心情好极了，竟然免费送了回家的乘客一程。